EP 0947299 B1 20010328 - Process and apparatus for making concrete products with exposed aggregates
Title (en)
Process and apparatus for making concrete products with exposed aggregates
Title (de)
Verfahren und Vorrichtung zum Herstellen von Betongegenständen mit sichtbaren Zuschlagstoffen
Title (fr)
Procédé et dispositif pour fabriquer des éléments en béton avec aggegats visibles en surface
Publication
Application
Priority
- EP 97310031 A 19971211
- CA 2224454 A 19971211
- GB 9726273 A 19971211
- US 98889397 A 19971211
Abstract (en)
[origin: EP0947299A1] A cementitious product has an exposed surface finish which is applied during formation of the product by a pressing process and which simulates the surface and aspect of natural stone provided by secondary processing. The pressing process uses a pressing apparatus comprising a serie of compacting/stripping heads (27), mould cavities (22), pallets (26), and feeding hoppers (23) and (35). Each plunger (28) has a metal holder (30) defining a recess (31) which accomodates and retains a flowable mass formed by a block of resilient material such as polyurethane. Continued pressure applied by the plungers causes the shoes (32) to diform and, in deforming, the surface in contact with the cementitious mix (24) comprising water, sand, cement and warse aggregates increases. The flowable material (32) flows around the uppermost aggregate particles (5) and presses upon the fines (4) driving them into the areas between the aggregates (5). The formed products have a surface finish simulating the surface of natural stone with exposed course aggregates (5). <IMAGE>
IPC 1-7
IPC 8 full level
B28B 3/02 (2006.01); B28B 7/00 (2006.01); B28B 19/00 (2006.01); B28B 23/00 (2006.01); B30B 15/02 (2006.01); B30B 15/06 (2006.01); B44C 5/04 (2006.01); B44F 9/04 (2006.01); C04B 41/53 (2006.01); C04B 41/72 (2006.01)
CPC (source: EP US)
B28B 3/024 (2013.01 - EP US); B28B 19/0007 (2013.01 - EP US); B28B 23/0075 (2013.01 - EP US); B28B 23/0081 (2013.01 - EP US); B30B 15/024 (2013.01 - EP US); B30B 15/065 (2013.01 - EP US); B44C 5/04 (2013.01 - EP US); B44F 9/04 (2013.01 - EP US); C04B 28/02 (2013.01 - EP US); C04B 41/5323 (2013.01 - EP US); C04B 41/72 (2013.01 - EP US); C04B 2111/542 (2013.01 - EP US); Y10S 264/43 (2013.01 - EP US)
C-Set (source: EP US)
Citation (examination)
- JP H07164420 A 19950627 - SHINKO YOGYO KK
- JP H04201510 A 19920722 - RIYOOWA KOUGIYOU KK
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0947299 A1 19991006; EP 0947299 B1 20010328; EP 0947299 B2 20061004; AT E200051 T1 20010415; CA 2224454 A1 19990611; DE 69710782 D1 20020404; DE 69710782 T2 20030605; DE 69710782 T3 20080508; DK 0947299 T3 20010716; ES 2155965 T3 20010601; GB 2332170 A 19990616; GB 2332170 A9; GB 2332170 B 20000315; GB 9726273 D0 19980211; GR 3035736 T3 20010731; PT 947299 E 20010731; US 6159401 A 20001212
DOCDB simple family (application)
EP 97310031 A 19971211; AT 97310031 T 19971211; CA 2224454 A 19971211; DE 69710782 T 19971211; DK 97310031 T 19971211; ES 97310031 T 19971211; GB 9726273 A 19971211; GR 20010400589 T 20010409; PT 97310031 T 19971211; US 98889397 A 19971211